CN114365527A

CN114365527A - Apparatus and method for network automation in a wireless communication system

Info

Publication number: CN114365527A
Application number: CN202080062723.8A
Authority: CN
Inventors: 朴重信; 韩允善; 郑相洙
Original assignee: Samsung Electronics Co Ltd
Current assignee: Samsung Electronics Co Ltd
Priority date: 2019-09-06
Filing date: 2020-09-03
Publication date: 2022-04-15
Also published as: EP4022850A1; US20210076320A1; WO2021045531A1; US11558813B2; KR20210029624A; EP4022850A4; US20230147409A1; KR102447806B1

Abstract

A fifth generation (5G) or quasi-5G communication system is disclosed that is provided to support higher data transmission rates than those of later fourth generation (4G) communication systems, such as Long Term Evolution (LTE). A method of operating a network node in a wireless communication system is provided. The method includes receiving network data from a plurality of first network nodes, generating first recommended operation information for a second network node based on the network data, and sending a first analysis result message including the first recommended operation information to the second network node.

Description

Apparatus and method for network automation in a wireless communication system

Technical Field

The present disclosure relates to a wireless communication system. And more particularly, to an apparatus and method for network automation in a wireless communication system.

Background

In order to meet the increased demand for wireless data traffic (traffic) since the deployment of 4 th generation (4G) communication systems, efforts have been made to develop improved 5 th generation (5G) or quasi-5G communication systems. Accordingly, the 5G or quasi-5G communication system is also referred to as an "ultra 4G network" or a "Long Term Evolution (LTE) system".

The 5G communication system is considered to be implemented in a millimeter wave (mmWave) frequency band (e.g., 60GHz band) of a higher frequency to achieve a higher data rate. In order to reduce propagation loss of radio waves and increase transmission distance, beamforming, massive Multiple Input Multiple Output (MIMO), full-dimensional MIMO (FD-MIMO), array antenna, analog beamforming, massive antenna techniques are discussed in the 5G communication system.

Further, in the 5G communication system, system network improvements are being developed based on advanced small cells, cloud Radio Access Networks (RANs), ultra-dense networks, device-to-device (D2D) communication, wireless backhaul, mobile networks, cooperative communication, coordinated multipoint (CoMP), receiving end interference cancellation, and the like.

In 5G systems, hybrid Frequency Shift Keying (FSK) and Quadrature Amplitude Modulation (QAM) (FQAM) and Sliding Window Superposition Coding (SWSC) have also been developed as Advanced Coding Modulation (ACM), and filter bank multi-carrier (FBMC), non-orthogonal multiple access (NOMA) and Sparse Code Multiple Access (SCMA) as advanced access techniques.

Meanwhile, a demand for a method of automated management of a 5G mobile communication network has recently arisen.

The above information is presented as background information only to aid in understanding the present disclosure. No determination is made, nor is an assertion made, as to whether any of the above may apply to the prior art regarding the present disclosure.

Disclosure of Invention

Solution to the problem

Aspects of the present disclosure are to address at least the above problems and/or disadvantages and to provide at least the advantages described below. Accordingly, an aspect of the present disclosure is to provide an apparatus and method for network automation in a wireless communication system.

Additional aspects will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented embodiments.

According to an aspect of the present disclosure, a method of operating a network node in a wireless communication system is provided. The method includes receiving network data from a plurality of first network nodes, generating first recommended operation information for a second network node based on the network data, and sending a first analysis result message including the first recommended operation information to the second network node.

According to another aspect of the present disclosure, an apparatus of a network node in a wireless communication system is provided. The apparatus includes a transceiver, and at least one processor coupled to the transceiver, the at least one processor configured to receive network data from a plurality of first network nodes, generate first recommended operation information for a second network node based on the network data, and send a first analysis result message including the first recommended operation information to the second network node.

According to various embodiments, an apparatus and method for network automation in a wireless communication system may be provided.

Other aspects, advantages, and salient features of the disclosure will become apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses various embodiments of the disclosure.

Drawings

The above and other aspects, features and advantages of certain embodiments of the present disclosure will become more apparent from the following description taken in conjunction with the accompanying drawings in which:

fig. 1 illustrates a fifth generation (5G) system architecture using reference point expression in a wireless communication system, in accordance with an embodiment of the present disclosure;

fig. 2 illustrates a configuration of a network entity in a wireless communication system according to an embodiment of the present disclosure;

fig. 3 illustrates a process for performing network automation of a wireless network in a wireless communication system according to an embodiment of the present disclosure;

fig. 4 illustrates a process of performing network automation in a wireless communication system according to an embodiment of the present disclosure;

fig. 5 illustrates a process in which a consumer network function makes a request for an operational proposal to a network analysis function in a wireless communication system according to an embodiment of the disclosure.

FIG. 6 illustrates a process in which a network analysis function sends operational offers to a consumer network function and receives feedback in a wireless communication system according to an embodiment of the disclosure;

fig. 7 illustrates a process of optimizing User Plane Function (UPF) in a wireless communication system according to an embodiment of the present disclosure;

fig. 8 illustrates a process of optimizing a quality of service (QoS) profile of each User Equipment (UE) in a wireless communication system according to an embodiment of the present disclosure; and

fig. 9 illustrates a procedure for optimizing a registration area of each terminal in a wireless communication system according to an embodiment of the present disclosure.

Like reference numerals are used to refer to like elements throughout.

Detailed Description

The following description with reference to the accompanying drawings is provided to assist in a comprehensive understanding of various embodiments of the disclosure as defined by the claims and their equivalents. It includes various specific details to aid understanding, but these are to be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the various embodiments described herein can be made without departing from the scope and spirit of the present disclosure. Moreover, descriptions of well-known functions and constructions may be omitted for clarity and conciseness.

The terms and words used in the following description and claims are not limited to bibliographic meanings, but are used only by the inventors to enable a clear and consistent understanding of the disclosure. Accordingly, it should be apparent to those skilled in the art that the following descriptions of the various embodiments of the present disclosure are provided for illustration only and not for the purpose of limiting the disclosure as defined by the appended claims and their equivalents.

It is to be understood that the singular forms "a," "an," and "the" include plural referents unless the context clearly dictates otherwise. Thus, for example, reference to a "component surface" includes reference to one or more such surfaces.

Hereinafter, various embodiments of the present disclosure will be described based on a hardware method. However, various embodiments of the present disclosure include techniques that use both hardware and software, and thus may not preclude a software perspective.

Hereinafter, the present disclosure relates to an apparatus and method for providing subscription data to non-subscriber User Equipments (UEs) in a wireless communication system.

Terms referring to signals, terms referring to channels, terms referring to control information, terms referring to network entities, and terms referring to elements of a device, which are used in the following description, are used only for convenience of description. Accordingly, the present disclosure is not limited to these terms, and other terms having the same technical meaning may be used.

Further, the present disclosure describes various embodiments using terminology used in some communication standards (e.g., the third generation partnership project (3GPP)), but this is merely an example. The various embodiments can be readily modified and applied to other communication systems.

Fig. 1 illustrates a 5G system architecture using reference point expression in a wireless communication system according to an embodiment of the present disclosure.

Referring to fig. 1, the 5G system architecture may include various elements (i.e., a Network Function (NF), and fig. 1 illustrates some functions corresponding to AN authentication server function (AUSF), (core) access and mobility management function (AMF), Session Management Function (SMF), Policy Control Function (PCF), Application Function (AF), Unified Data Management (UDM), Data Network (DN), User Plane Function (UPF), (radio) access network ((R) AN), and terminal (i.e., User Equipment (UE)).

The corresponding NF supports the following functions.

The AUSF stores data for authenticating the UE.

The AMF may provide functions of providing access and managing mobility in units of UEs, and may connect to one AMF basically for each UE.

In particular, the AMF support functions such AS signaling between Code Network (CN) nodes to move between 3GPP access networks, termination of Radio Access Network (RAN) Communication Processor (CP) interface (i.e., NG2 interface), termination of non-access stratum (NAS) signaling (NG1), NAS signaling security (NAS ciphering and integrity protection), AS security control, registration management (registration area management), connection management, idle mode UE reachability (including control and performance of page retransmissions), mobility management control (subscription and policy), support for intra-system and inter-system mobility, support for network slicing, SMF selection, lawful interception) (for AMF events and interface to LI system), provide transport of Session Management (SM) messages between UE and SMF, transparent proxy for SM message routing, access authentication, access authorization including roaming right checking, access authorization, and authorization, SMS message transmission, Security Anchor Function (SAF), and/or Security Context Management (SCM) are provided between a UE and an SMS function (SMSF).

Some or all of the functions of an AMF may be supported within a single instance of the AMF.

The DN is for example an operator service, internet access or a third party service. The DN transmits or receives a downlink Protocol Data Unit (PDU) to or from the UPF.

-the PCF receiving information about the packet flow from the application server and providing the functionality of determining the policies for mobility management and session management. Specifically, the PCF supports the following functions: supporting a unified policy framework for controlling network operations, providing policy rules to allow CP functions (e.g., AMFs, SMFs, etc.) to try the policy rules, and implementing a front end for accessing relevant subscription information to determine policies within a User Data Repository (UDR).

The SMF may provide session management functions and, if the UE has multiple sessions, the respective sessions may be managed by different SMFs.

Specifically, SMF supports the following functions: managing sessions (e.g., establishing, modifying, and releasing sessions, including maintaining tunnels between UPFs and AN nodes), assigning and managing (including selective authentication) UE IP addresses, selecting and controlling User Plane (UP) functions, configuring traffic steering to route traffic from UPFs to appropriate destinations, terminating interfaces for policy control functions, attempting quality of service (QoS) and control portions of policies, lawful interception (interfaces for SM events and LI systems), terminating SM portions of NAS messages, downlink data notification, initiator (initiator) of AN-specific SM information (sending N2 to AN via AMF), determining Session and Service Continuity (SSC) modes of sessions, and roaming.

Some or all of the functions of an SMF may be supported within a single instance of an SMF.

-the UDM stores subscription data and policy data of the user. The UDM comprises two parts, namely an application Front End (FE) and a User Data Repository (UDR).

The FEs include UDM FEs for handling location management, subscription management and credentials (credential) and PCFs for controlling policies. The UDR stores data required by the functionality provided by the UDM-FE and policy profiles required by the PCF. The data stored in the UDR includes user subscription data and policy data, including subscription Identifiers (IDs), security credentials, access and mobility related subscription data, and session related subscription data. UDM-FD supports the functions of accessing subscription information stored in UDR, handling authentication credentials, handling user identification, authentication, registering access/managing mobility, managing subscriptions and managing SMS.

-the UPF sends downlink PDUs received from the DN to the UE via the (R) AN, and uplink PDUs received from the UE to the DN via the (R) AN.

Specifically, the UPF supports the following functions: anchor point for intra/inter Radio Access Technology (RAT) mobility, external PDU session point interconnected to the data network, packet routing and forwarding, user plane part trying packet inspection and policy rules, lawful interception, reporting traffic usage, uplink classifier for supporting routing of traffic flows to the data network, branch point for supporting multi-homed PDU sessions, handling QoS for the user plane ((e.g., packet filtering, gating (gate), uplink/downlink rates), uplink traffic validation (SDF mapping between Service Data Flows (SDFs) and QoS flows), marking transport level packets in uplink and downlink, buffering downlink packets, and triggering downlink data notifications.

The AF interoperates with the 3GPP core network to provide services (e.g., support of functions that affect applications routing traffic, access network capability exposure, interact with policy framework for controlling policies).

- (R) AN is referred to as a new radio access network supporting all evolved Universal Terrestrial Radio Access (UTRA) (E-UTRA), which is AN evolved version of the 4G radio access technology and a New Radio (NR) access technology (e.g., next generation node b (gnb)).

The gNB supports the following functions: for managing radio resources (i.e., radio bearer control, radio admission control, connection mobility control, dynamic allocation of resources (i.e., scheduling) to a UE in uplink/downlink), compressing Internet Protocol (IP) headers, encrypting user data flows and performing integrity protection, selecting an AMF in a UE attachment when routing to the AMF is not determined based on information provided to the UE, user plane data routed to a UPF, control plane information routed to the AMF, setting and releasing connections, scheduling and sending paging messages (generated from the AMF), scheduling and sending system broadcast information (generated from operations and maintenance (O & M)), performing mobility measurements and scheduling and configuration measurement reports, transport level packets marked in uplink, managing sessions, supporting network slicing, managing QoS flows and performing mapping to data radio bearers, Support of UEs in inactive mode, distribution of NAS messages, selection of NAS nodes, sharing of radio access networks, dual connectivity, and tight interworking between NR and E-UTRA functions.

-UE refers to user equipment. The user equipment may be referred to as a terminal, a Mobile Equipment (ME), a Mobile Station (MS), etc. Further, the user device may be a portable device such as a notebook computer, a mobile phone, a Personal Digital Assistant (PDA), a smart phone, or a multimedia device, or may be a non-portable device such as a Personal Computer (PC) or a vehicle-mounted device.

For clarity of description, fig. 1 does not show the unstructured data storage network function (UDSF), the structured data storage network function (SDSF), the Network Exposure Function (NEF), and the NF Repository Function (NRF), but all NFs shown in fig. 5 may perform interoperation with UDSF, NEF, and NRF as needed.

NEF provides third party, internal exposure/re-exposure, application functionality provided by 3GPP network functions, and means for securely exposing services and capabilities for edge computing. The NEF receives information from other network functions (based on the exposed capabilities of the other network functions). The NEF may store the received information as structured data through an interface standardized as a data storage network function. The stored information can be re-exposed by the NEF to other network functions and application functions and can be used for another purpose such as analysis.

NRF supports service discovery function. The NRF receives the NF discovery request from the NF instance and provides information about the discovered NF instance to the NF instance. In addition, the NRF maintains available NF instances and services supported thereby.

SDSF is a selective function for supporting the function of storing and retrieving information as data structured by any NEF.

UDSF is a selective function for supporting the function of storing and retrieving information as data unstructured by any NF.

Meanwhile, fig. 1 illustrates a reference model in the case where a UE accesses one DN through one PDU session for convenience of description, but the present disclosure is not limited thereto.

The UE can simultaneously access both (i.e., local and central) data networks through multiple PDU sessions. At this point, two SMFs may be selected for different PDU sessions. However, each SMF may have the capability to control both local and central UPFs within a PDU session.

Furthermore, the UE may access both (i.e., local and central) data networks simultaneously within a single PDU session.

In 3GPP systems, the conceptual link connecting NFs within a 5G system is defined as a reference point. Reference points included in the 5G system architecture of fig. 1 are described below.

-NG 1: reference point between UE and AMF

-NG 2: reference point between (R) AN and AMF

-NG 3: reference point between (R) AN and UPF

-NG 4: reference point between SMF and UPF

-NG 5: reference point between PCF and AF

-NG 6: reference point between UPF and data network

-NG 7: reference point between SMF and PCF

-NG 8: reference point between UDM and AMF

-NG 9: reference point between two core UPFs

-NG 10: reference point between UDM and SMF

-NG 11: reference point between AMF and SMF

-NG 12: reference point between AMF and AUSF

-NG 13: reference point between UDM and authentication server function (AUSF)

-NG 14: reference point between two AMFs

-NG 15: reference point between PCF and AMF in non-roaming scenario and reference point between PCF and AMF in roaming scenario within visited network

Fig. 2 illustrates a configuration of a network entity in a wireless communication system according to an embodiment of the present disclosure.

A network entity according to the present disclosure is a concept that includes network functions implemented according to a system. The term "unit" or "device" used hereinafter may refer to a unit for processing at least one function or operation, and may be implemented in hardware, software, or a combination of hardware and software.

Referring to fig. 2, a network entity according to various embodiments may include a communication unit or transceiver 210, a storage unit 220, and a controller 230 for controlling the overall operation of the network entity 200.

The communication unit 210 transmits and receives signals to and from other network entities. Accordingly, all or part of the communication unit 210 may be referred to as a "transmitter 211", "receiver 213", or "transceiver 210".

The storage unit 220 stores data such as basic programs, applications, and configuration information for the operation of the network entity 200. The storage unit 220 may include volatile memory, non-volatile memory, or a combination of volatile and volatile memory. The storage unit 220 provides stored data in response to a request from the controller 240.

The controller 230 controls the overall operation of the network entity 200. For example, the controller 230 transmits and receives signals through the communication unit 210. The controller 230 records data in the storage unit 220 and reads the data. The controller 230 may perform the functions of the protocol stack required by the communication standard. To this end, the controller 230 may include a circuit, a dedicated circuit, at least one processor or microprocessor, or may be part of a processor. Also, the controller 330 or a portion of the communication unit 210 may be referred to as a Communication Processor (CP). According to various embodiments, the controller 230 may control the network entity 200 to perform an operation.

The communication unit 210 and the controller 230 should necessarily be implemented as separate modules, but may be implemented as one element, such as a single chip or a software block. The communication unit 210, the storage unit 220, and the controller 230 may be electrically connected. The operation of the network entity 200 may be implemented by including a storage unit 220 within the network entity 200 for storing corresponding program code.

The network entity 200 may comprise a network node and may be one of a base station (RAN), AMF, SMF, UPF, NF, NEF, NRF, CF, NSSF, UDM, AF, AUSF, Service Control Point (SCP), UDSF, context storage, operation, administration and maintenance (OAM), EMS, configuration server, and Identifier (ID) management server.

Various embodiments provide methods and apparatus for automating management of a mobile communications network.

Various embodiments provide methods and apparatus for communicating recommendations of optimal operations between network data analysis functions and network functions in order to automate and provide feedback on network management.

Further, various embodiments provide methods of determining additional operations, generating recommendations, and sending recommendations based on received feedback.

According to various embodiments of the present disclosure, automation performance may be improved and time spent for optimization may be reduced by allowing a network analysis function to directly control the system. Further, according to various embodiments of the present disclosure, the accuracy of network function control and the performance of the entire system may be improved by improving learning performance using feedback.

Fig. 3 illustrates a process in which a wireless communication system performs network automation of a wireless network according to an embodiment of the present disclosure.

Fig. 3 schematically illustrates a method of network automation in a wireless communication system according to an embodiment of the present disclosure.

Each element function 330 of the network, such as an access and mobility management function (AMF), a Session Management Function (SMF), an operation, administration and maintenance (OAM), and a Radio Access Network (RAN) included in the wireless network, may be a consumer network function (consumer NF)310 that makes a request for an analysis result of a network data analysis function (NWDAF) 320.

Referring to fig. 3, in operation 301, the consumer network function 310 makes a request for analysis to the network data analysis function 320.

In operation 302, the network data analysis function 320 may collect data from each network function 330 in order to generate analysis results requested from the consumer network function 310 and analyze the data collected to the consumer network function 310.

In operation 303, the network data analysis function 320 sends the analysis results to the consumer network function 310 that sent the request for analysis. The consumer network function 310 receiving the analysis results uses the analysis results received from the network data analysis function 320 during the process of determining control parameters and operations.

Fig. 4 illustrates a process of performing network automation in a wireless communication system according to an embodiment of the present disclosure.

In particular, fig. 4 schematically illustrates a network automation method in a wireless communication system, in accordance with various embodiments.

Referring to fig. 4, the network automation method is the following method: proposing operations for each function directly to the consumer network function 410 through the network data analysis function 420 in order to remove the disadvantages of the network automation method using the network data analysis function 320 of fig. 3, and receiving feedback from the consumer network function 410 for application results of the proposed operations in order to improve the performance of the network automation.

Referring to fig. 4, in operation 401, the consumer network function 410 transmits a request message for an analysis result to the network data analysis function 420. According to an embodiment of the present disclosure, when the request message of operation 401 is transmitted, the consumer network function 410 may specify and indicate a preferred analysis type among the analysis forms supported by the consumer network function 410.

In operation 402, the network data analysis function 420 may choose to provide an operational recommendation as the analysis result rather than analyzing the data. Further, the consumer network function 410 may include information in the request message indicating whether the consumer network function supports feedback.

According to an embodiment of the present disclosure, the indication parameter specifying the analysis type may be omitted by configuring a default value of the analysis type in advance. In this case, when the network data analysis function 420 receives the request of operation 401 from the consumer network function 410, the network data analysis function 420 transmits an analysis result of a pre-specified analysis type to the consumer network function 410 in operation 402. According to an embodiment of the present disclosure, indication information indicating whether feedback is supported may not be included in the request message of operation 401 by specifying a corresponding default value in advance.

The network data analysis function 420 may send the operation recommendation as an analysis result to the consumer network function 410, in which case it may be specified by an indication whether the consumer network function 410 needs to provide feedback. The network data analysis function 420 may or may not configure the feedback request indication and may or may not send the feedback request indication to the consumer network function 410, thereby reducing additional signal load due to feedback and controlling the transmission of feedback as needed.

In operation 403, the consumer network function 410 applies the received operation recommendations and sends application results including updated parameter values to the network data analysis function 420. The network data analysis function 420 may update the network state information stored as application results received from the consumer network function 410, analyze the received application results, and determine whether to send an operation recommendation to the otherwise required consumer network function 410.

Fig. 5 illustrates a process by which a consumer network function makes a request for an operational recommendation to a network analysis function in a wireless communication system according to an embodiment of the disclosure.

In particular, fig. 5 shows an example of a process for applying the method according to various embodiments.

In the embodiment of fig. 5, information is included of the type of analysis data required by the consumer network function 510 and information indicating whether the consumer network function 510 supports feedback on the results of the analysis in operation 501 (in operation 501 the consumer network function 510 makes a request for analysis data to the network data analysis function 520).

Referring to fig. 5, in operation 501, a consumer network function 510 sends a request message for analysis data to a network data analysis function 520. The request message for the analysis data includes an analysis ID for specifying the content of the analysis data, an analysis type for specifying a request for the type of the analysis data, and feedback support information indicating whether a function of applying the received analysis result and then providing feedback for the result is supported. At this time, according to one embodiment of the present disclosure, when the requested analysis type is preconfigured in the system information, the parameter of the requested analysis type may be omitted from the analysis request message of operation 501. Similarly, when information indicating whether the network function is supported is registered in the network analysis function or is pre-configured by another method, the feedback support parameter may be omitted from the analysis request message of operation 501.

In operation 502, the network data analysis function 520 identifies the content and type of analysis data specified by the analysis ID and requested analysis type included in the analysis request message received from the consumer network function 510 and determines the input data required to be collected to generate the appropriate analysis results.

In operations 503 to 507, the network data analysis function 520 transmits a data collection request message, which makes a request for transmission of data, to the relevant network functions 530(531, 532, 533, 534, and 535) to collect required input data, and collects relevant data from each network function 530 through a data collection response message. The illustrated example is merely for the purpose of generically expressing the processes, and each collection process is performed with the required network functions 530, but need not necessarily be performed with all of the network functions 530. In addition, the data collection request and the response signal transmission/reception may be repeatedly performed several times as needed.

In operation 508, the network data analysis function 520 transmits a data analysis response message to the consumer network function 510 in response to the data analysis request signal message. The data analysis response message of operation 508 need not necessarily be performed after operations 503-507, and may be performed immediately after operation 502, according to a choice in the process of the present embodiment. The data analysis response message of operation 508 may include the analysis ID requested by the consumer network function 510, the type of subscription analysis indicating acceptance of the type of analysis result, and a feedback-enabled parameter indicating whether or not feedback is required to be provided for the analysis result provided by the network data analysis function 520. When the feedback-enabled parameter is configured to "on (1)," the consumer network function 510 sends feedback to the network analysis function 520 for each analysis result received from the network analysis function 520. When the feedback-enabled parameter is configured as "off (0)," the consumer network function 510 does not send feedback for the received analysis results if there is no separate indication from the network analysis function 520.

Fig. 6 illustrates a process in which a network analysis function sends operation recommendations to a consumer network function and receives feedback in a wireless communication system according to an embodiment of the disclosure.

In particular, fig. 6 illustrates an example of a process by which the network data analysis function 620 sends operational recommendations and feedback by applying a recommendation scheme and improves the optimization process, according to various embodiments.

Referring to fig. 6, the network data analysis function 620 analyzes network data collected from the network functions 630(631, 632, 633, 634, and 635), determines an operation (e.g., control parameter update, status change, and control message transmission/reception) required by the consumer network function 610 based on the analysis result, and configures operation recommendation information corresponding thereto in operation 601.

In operation 602, the network data analysis function 620 sends the analysis result including recommendation information, which is a parameter including an operation recommendation, to the consumer network function 610. At this time, the analysis result control message for transmitting the analysis result may include indication information requiring feedback (information indicating whether feedback is required). The consumer network function 610, which has received the control message in which the indication requiring feedback is configured, performs the required function according to the received recommended operation information, and then transmits the control message for feeding back the result to the network data analysis function 620. According to an embodiment of the present disclosure, when the consumer network function 610 is reconfigured in the system to always provide feedback, or to always provide feedback through feedback-enabled parameters by the network data analysis function 620 in a previous data request operation, the indication information of the analysis result control message requiring feedback may be omitted. Further, according to another embodiment, the network data analysis function 620 may control the network load generated due to the additional message for transmitting the feedback by a method of configuring (or including) an indication of the required feedback of the analysis result control message only if the feedback is required.

In operation 603, the consumer network function 610 determines and executes relevant parameters and processes based on the received operation recommendation information.

In operation 604, the consumer network function 610 sends the updated network parameters and status information as execution results to the network data analysis function 620 via an update report message. The update report message of operation 604 may include the operation control information received from the network data analysis function 620 and the corresponding updated control parameters and status information.

In operation 605, the network data analysis function 620 stores the updated control parameters and network status information received from the consumer network function 610.

In operation 606, the network data analysis function 620 determines whether control operations for the consumer network function 610 are additionally required based on the received control parameters and network status information. At this time, the selected consumer network function 610 does not necessarily have to be the same as the previously selected consumer network function, and may be selected as a required function from all the consumer network functions 610 that previously made requests for analysis results to the network data analysis function 620.

In operation 607, the network data analysis function 620 additionally transmits an analysis result control message including an operation recommendation to the consumer network function 610 selected through operation 606 as needed. The consumer network function 610 receiving the analysis result message performs the processes of

operations

603 and 604 and additionally performs the processes of operations 605 and 606, and the network data analysis function 620 performs the process of operation 607 again and repeats the processes of operations 603 to 606 as many times as necessary. Through such a process, as the status and control parameters of the consumer network function 610 change, the network data analysis function 620 can control the required optimized performance of all network functions 630(631, 632, 633, 634, and 635) through immediate feedback and provide an overall performance improvement over existing schemes that regularly collect and apply network status changes.

Fig. 7 illustrates a process of optimizing User Plane Function (UPF) in a wireless communication system according to an embodiment of the present disclosure.

In particular, fig. 7 illustrates an example of a process by which network analysis function 760 optimizes data plane functions 741 and 742, in accordance with various embodiments.

Referring to fig. 7, in operation 701, the network data analysis function 760 collects required network data from the required network function 770 through a process according to the embodiment of fig. 4.

In operation 702, the network data analysis function 760 analyzes the collected network data and detects whether the UPF741 is in an overloaded or underloaded state.

When the UPF741 is detected to be overloaded or underloaded in operation 702, the network data analysis function 760 transmits an analysis result message including information that makes a request for reallocation of the UPF 742 to the SMF 750 in operation 703, so as to reallocate the UPF 742. The analysis result message of operation 703 may include an analysis ID and an analysis type. The analysis type may include operation recommendations and recommendation information. The recommendation information may include a UPF rearrangement, candidate UEs, candidate UPFs and an indication that feedback is required.

Through the process of operations 704 through 708, SMF 750 may perform a series of processes for reassigning a UPF 742 for a candidate UE 720 using information of the candidate UE 720 located near the radio access network (730) and information of the candidate UPF 742 received from the network data analysis function 760.

In operation 704, SMF 750 sends a UE status request message to UPF 741. The UE status request message may include a UE ID and a PDU session ID.

In operation 705, SMF 750 receives a UE status response message from UPF 741. The UE status response message may include the UE ID, PDU session ID and UE IP address and buffer status.

In operation 706, the SMF 750 and the UE 720 transmit a message of a PDU session modify command.

In operation 707, the SMF 750 and the UE 720 transmit a UE-initiated PDU session setup message for the new UPF 742.

In operation 708, SMF 750 and UE 720 send a UE-initiated PDU session release message for previous UPF 741.

In operation 709, the SMF 750 sends an update report message to the network data analysis function 720 and thus sends information on the result of the UPF re-allocation. Through the update report message of operation 709, the network data analysis function 760 can immediately acquire information indicating the reallocated UPFs 742 and the UEs 720 to which the UPFs 742 are reallocated and the PDU sessions of the reconfigured corresponding UEs 720. The update report message of operation 709 may include a report ID, recommendation information, and updated parameter information. The updated parameter information may include a UE ID, a PDU session ID, and a new UPF ID.

In operation 710, the network analysis function 760 stores the updated parameter information.

In operation 711, the network data analysis function 760 determines whether there are additional required operational recommendations. Specifically, in operation 711, the network analysis function 760 may determine whether additional updates are required.

In operation 712, the network data analysis function 760 may perform the additionally required control by transmitting the analysis result message. The analysis result message of operation 712 may include the analysis ID, recommendation information, and updated parameter information.

Fig. 8 illustrates a process of optimizing a quality of service (QoS) profile of each UE in a wireless communication system according to an embodiment of the present disclosure.

In particular, fig. 8 illustrates a process by which network analysis function 870 updates QoS policies for UEs 820 located near RAN 830.

Referring to fig. 8, in operation 801, a network data analysis function 870 collects network status data from a required network function 880.

In operation 802, the network data analysis function 870 determines a quality of experience of the service of the series of UEs 820 through analysis of the network status data collected in operation 801. Specifically, in operation 802, the network data analysis function 870 detects congestion (congestion) and whether quality of experience (QoE) of the UE 820 is degraded through analysis of the network status data collected in operation 801.

In operation 803, the network data analysis function 870 sends an analysis result message to a Policy Control Function (PCF)860 (i.e., a policy server) that includes an operational recommendation that proposes an update of the QoS profile of the corresponding PDU session for the corresponding UE 820. The analysis result message of operation 803 may include an analysis ID and an analysis type. The analysis type may include operation recommendations and recommendation information. The recommendation information may include a UE ID, a recommended QoS profile, a PDU session, and a QoS flow ID.

In operation 804, the PCF 860 selects the UE 820 to change the QoS profile based on the received operation recommendation. Specifically, in operation 804, PCF 860 may recommend that new QoS rules be generated for the PDU session for the UE based on the received operations.

In operation 805, PCF 860 may allow for updating QoS control information for a corresponding PDU session for a corresponding UE 820 by sending an updated QoS profile to SMF 850 located near AMF 890. Specifically, in operation 805, PCF 860 and SMF 850 send policy update messages. The policy update message may include a UE ID, a PDU session ID, and Policy and Charging Control (PCC) rules.

In operation 806, the SMF 850 performs the required PDU session change procedure with the UE 820 and the UPF 840 by reflecting the QoS profile change information received from the PCF 860. Specifically, in operation 806, PCF 860 and UE 820 send NW-initiated PDU session modification messages.

In operation 807, SMF 850 reports the results of the PDU session modification to PCF 860. Specifically, in operation 807, PCF 860 and UE 820 send a UE configuration update message, i.e., new UE policy information.

In operation 808, the PCF 860 sends the result of the QoS profile change of the corresponding PDU session of the corresponding UE 820 applied to the network data analysis function 870. Specifically, in operation 808, PCF 860 sends an update report message to network data analysis function 870. The update report message of operation 808 may include a report ID, recommendation information, and updated parameter information. The updated parameter information may include the UE ID, new QoS rules, PDU session ID and QoS flow ID.

In operation 809, the network data analysis function 870 stores the updated parameter information received in operation 808.

In operation 810, the network data analysis function 870 determines whether additional analysis is required based on the received results. Specifically, in operation 810, the network data analysis function 870 may determine whether additional updates are required.

When network data analysis function 870 determines in operation 809 that additional analysis is required, network data analysis function 870 additionally sends an analysis report (analysis result) message including additional operation recommendations to PCF 860 in operation 811. The analysis report message of operation 811 may include an analysis ID, recommendation information, and updated parameter information.

Fig. 9 illustrates a procedure of optimizing a registration area of each UE in a wireless communication system according to an embodiment of the present disclosure.

In particular, fig. 9 illustrates an example of a process by which the network analysis function 950 updates the registration area of a UE 920 located near the RAN930, in accordance with various embodiments.

Referring to fig. 9, in operation 901, the network data analysis function 950 collects network status data from the required network functions 960.

In operation 902, the network data analysis function 950 determines that the registration area of the specific UE 920 needs to be updated through analysis of the network status data collected in operation 901. Specifically, in operation 902, the network data analysis function 950 detects a change in the UE trajectory of the specific UE 920 through analysis of the network status data collected in operation 901.

In operation 903, the network data analysis function 950 transmits operation recommendation information including the candidate UEs 920 to update the registration area and the candidate registration area values to the AMF940 through the analysis result message. Specifically, in operation 903, the network data analysis function 950 transmits an analysis result message to the AMF 940. The analysis result message may include an analysis ID, an analysis type, and an indication indicating whether feedback is required. The analysis type may include operation recommendations and recommendation information. The recommendation information may include a new Registration Area (RA) and a UE ID.

In operation 904, the AMF940 selects the UE 920 to update the registration area based on the received operation recommendation. Specifically, in operation 904, the AMF940 may configure the updated registration area for the UE.

When the AMF940 receives a registration request message from the corresponding UE 920 in operation 905, the AMF940 uses the received registration area information and updates the registration area information of the UE 920 corresponding to the registration request message of operation 905 in operation 906. Specifically, in operation 906, the AMF940 may transmit a registration accept message including information on the new registration area to the UE 920.

In operation 907, the AMF940 transmits a result of applying the change of the registration area of the corresponding UE 920 to the network data analysis function 950. Specifically, in operation 907, AMF940 may send an update report message to network data analysis function 950. The update report message may include a report ID, recommendation information, and updated parameter information. The updated parameter information may include UE ID, registration area, update time.

In operation 908, the network data analysis function 950 stores the updated parameter information.

In operation 909, the network data analysis function 950 determines whether additional analysis is required based on the received results. Specifically, in operation 909, the network data analysis function 950 can determine whether an update is additionally required.

When the network data analysis function 950 determines that additional analysis is required in operation 909, the network data analysis function 950 additionally sends an analysis report (analysis result) message including additional operation recommendations to the AMF940 in operation 910. The analysis report message of operation 910 may include an analysis ID, recommendation information, and updated parameter information.

The methods disclosed in the claims and/or the methods according to the various embodiments described in the specification of the present disclosure may be implemented by hardware, software, or a combination of hardware and software.

When the method is implemented by software, a computer-readable storage medium for storing one or more programs (software modules) may be provided. One or more programs stored in the computer-readable storage medium may be configured to be executed by one or more processors within the electronic device. The at least one program may include instructions for causing the electronic device to perform methods in accordance with various embodiments of the present disclosure as defined by the appended claims and/or disclosed herein.

Programs (software modules or software) may be stored in non-volatile memory including random access memory and flash memory, Read Only Memory (ROM), Electrically Erasable Programmable Read Only Memory (EEPROM), magnetic disk storage devices, compact disk ROM (CD-ROM), Digital Versatile Disks (DVD), or other types of optical storage devices or magnetic tape. Alternatively, any combination of some or all of them may form a memory in which the program is stored. Further, a plurality of such memories may be included in the electronic device.

Further, the program may be stored in an attachable storage device that can access the electronic device through a communication network such as the internet, an intranet, a Local Area Network (LAN), a wide area network (WLAN), and a Storage Area Network (SAN), or a combination thereof. Such storage devices may access the electronic device via an external port. In addition, a separate storage device on the communication network may access the portable electronic device.

In the above detailed embodiments of the present disclosure, elements included in the present disclosure are expressed in singular or plural forms according to the presented detailed embodiments. However, the singular or plural forms are appropriately selected for the present situation for convenience of description, and the present disclosure is not limited by the elements expressed in the singular or plural forms. Thus, elements expressed in the plural may also include a single element, or elements expressed in the singular may also include a plurality of elements.

While the disclosure has been shown and described with reference to various embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the disclosure as defined by the appended claims and their equivalents.

Claims

1. A method of operating a network node in a wireless communication system, the method comprising:

receiving network data from a plurality of first network nodes;

generating first recommended operation information for the second network node based on the network data; and

and sending a first analysis result message including the first recommended operation information to the second network node.

2. The method of claim 1, wherein the first and second light sources are selected from the group consisting of a red light source, a green light source, and a blue light source,

wherein the first analysis result message further includes a feedback requirement indicator for feedback based on the first recommended operation information.

3. The method of claim 2, further comprising:

in response to sending the first analysis result message comprising the feedback requirement indicator, receiving an update report message comprising updated network parameters from the second network node.

4. The method of claim 3, further comprising:

determining whether further operation is required for the second network node based on the updated network parameters;

generating second recommended operation information when it is determined that additional operations are required for the second network node; and

and sending a second analysis result message including the second recommended operation information to the second network node.

5. The method of claim 1, wherein the first and second light sources are selected from the group consisting of a red light source, a green light source, and a blue light source,

wherein the method further comprises:

determining that the user plane function UPF is in an overloaded or underloaded state based on the network data, and wherein the first analysis result message is sent when the UPF is determined to be in the overloaded or underloaded state.

6. The method of claim 5, wherein the first and second light sources are selected from the group consisting of a red light source, a green light source, and a blue light source,

wherein the first analysis result message further includes at least one of a UPF relocation indicator, information on the at least one candidate user equipment UE, information on the at least one candidate UPF, and a feedback requirement indicator.

7. The method of claim 6, wherein the first and second light sources are selected from the group consisting of a red light source, a green light source, and a blue light source,

wherein the method further comprises:

receiving an update report message comprising updated network parameters from the second network node, and wherein the updated network parameters comprise at least one of a UE identifier ID, a protocol data unit, PDU, session ID, and a new UPF ID.

8. An apparatus of a network node in a wireless communication system, the apparatus comprising:

a transceiver; and

at least one processor coupled to the transceiver and configured to:

receiving network data from a plurality of first network nodes,

generating first recommended operation information for the second network node based on the network data, and

9. The apparatus as set forth in claim 8,

10. The apparatus as set forth in claim 9, wherein,

wherein the at least one processor is further configured to:

11. The apparatus as set forth in claim 10, wherein,

wherein the at least one processor is further configured to:

determining whether further operation is required for the second network node based on the updated network parameters,

generating second recommended operation information when it is determined that additional operations are required for the second network node, an

12. The apparatus as set forth in claim 8,

wherein the at least one processor is further configured to:

13. The apparatus as set forth in claim 12,

14. The apparatus as set forth in claim 13, wherein,

wherein the at least one processor is further configured to:

receiving an update report message comprising updated network parameters from the second network node, an

Wherein the updated network parameters include at least one of a UE identifier ID, a protocol data unit, PDU, session ID, and a new UPF ID.